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Finding the Fourth Proportional to 17,623, 26,434.52 and 5,311

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Solution

The fourth proportional to 17,623, 26,434.52 and 5,311 is: 7,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,623 : 26,434.52 = 5,311 : x
  2. Step 2: Convert to fraction form
    17,623/26,434.52 = 5,311/x
  3. Step 3: Cross multiply
    17,623x = 26,434.52 × 5,311
  4. Step 4: Simplify right side
    17,623x = 140,393,735.72
  5. Step 5: Solve for x
    x = 140,393,735.72/17,623
  6. Step 6: Final answer
    x = 7,966.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.